diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2018-03-07 18:20:42 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2018-12-24 01:27:32 +0100 |
| commit | 710662b45ed7d752941f5bbcc8cf6af4c1b8e73c (patch) | |
| tree | 3461cb8acd5f3fa55ec4a7b49baa0c40d2cba20d /arch | |
| parent | f397f60efbb24c2906cd95f443607b2642b49b24 (diff) | |
arm: dts: apalis imx6: add reset controller for atmel mxt multitouch
The Atmel maXTouch multitouch controller driver does not control the
reset line connected to the chip. Use a GPIO reset controller node to
release the reset line and make the controller work.
Note that both the reset controller's and the mxt mutitouch controller's
node are set to disabled. Either change this in the dtsi source or fix
this from U-Boot if you use an Atmel maXTouch multitouch controller.
setenv fdt_fixup 'fdt addr ${fdt_addr_r} && fdt set /soc/aips-bus@02100000/i2c@021a0000/atmel_mxt_ts@4a status okay && fdt set /mxt-reset status okay'
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi index 1e313dd37c98..1f00010e2bd0 100644 --- a/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi +++ b/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi @@ -47,6 +47,14 @@ }; }; + mxt_reset: mxt-reset { + compatible = "gpio-reset"; + reset-gpios = <&gpio6 9 GPIO_ACTIVE_LOW>; + reset-delay-us = <1>; + #reset-cells = <0>; + status = "disabled"; + }; + v4l2_cap_0 { compatible = "fsl,imx6q-v4l2-capture"; ipu_id = <0>; @@ -159,6 +167,7 @@ reg = <0x4a>; interrupt-parent = <&gpio6>; interrupts = <10 IRQ_TYPE_EDGE_FALLING>; + resets = <&mxt_reset>; status = "disabled"; }; |